187results about How to "Avoid accidental deletion" patented technology

A thermally-assisted perpendicular magnetic recording head and system has a head carrier that supports an optical channel for the transmission of radiation to the recording layer, a write pole for directing a magnetic field to the recording layer, and an electrical coil for inducing the magnetic field from the write pole. The optical channel has a radiation exit face with an aperture at the recording-layer-facing surface of the head carrier. The write pole has a pole tip with an end face that is recessed from the recording-layer-facing surface. The write pole tip is tapered down to the end faces. The pole tip taper and the recession of the end face concentrates the write field at the middle of the perpendicular magnetic recording layer where the radiation from the optical channel is incident. The characteristic dimension of the aperture and the spacing between the aperture and the recording layer are both less than the wavelength of the radiation. The radiation source may be a laser diode mounted to the head carrier.

The present invention provides a perpendicular magnetic write head capable of preventing unintended erasure of information due to spread of a magnetic field for writing. A leading shield, two side shields, and a trailing shield are disposed around (a front end portion of) a main magnetic pole layer. A nonmagnetic layer having a uniform thickness formed by ALD is provided between the front end portion and two side shields. Consequently, intervals are constant in any positions. Spread of magnetic fields for recording in a write track width direction is suppressed sufficiently more than the case where the intervals vary among positions.

The invention provides a repeating date deleting method and a device, and belongs to the field of application of computers. The utility model solves the problem of error detection to repeating date during the deleting process. The method comprises the followings: generating finger prints of all data blocks, when a plurality of data blocks with the same finger prints exist, a comparison is made to the data blocks with the same finger prints, which are called out from backend storage; when the data blocks with the same finger prints are the same completely, repeating data deletion is performed on the data blocks. The invention provides the technical scheme which is suitable for large scale data storage, and accurate data deletion is achieved.

The invention discloses a file deleting method and a file deleting device. The file deleting method includes acquiring attribute information of various files in disks; selecting the files with attribute information according with preset conditions as target files; acquiring description information of the various target files and displaying; providing a deleting access for the target files so as to delete the corresponding target files when the deleting access receives deleting requests, wherein the step of acquiring the attribute information of the various files in the disks includes acquiring the attribute information of the various files in the disk by inquiring main file lists of the disks. By the file deleting method and the file deleting device, user operation can be facilitated and file deletingefficiency can be improved.

A method and system for accessing declined invitations is provided. The method includes receiving notification of an available time slot, retrieving stored declined event invitations, and presenting the declined event invitations to a user. The user can accept of a previously declined event invitation for the available time slot. When the user receives an event invitation and declines the event invitation, the method includes saving the declined event invitation to a data store from which it may be retrieved. Stored declined event invitations are deleted once the time of the event has passed.

The invention relates to an unlocking method and discloses an unlocking method and a system for intelligent terminal. The method comprises the steps of setting the traffic permit for operating appointed procedure or entering appointed user interface beforehand, the different traffic permits are corresponding to the different appointed procedures or user interfaces, inputting the client password for the intelligent terminal through a human-computer interaction interface of intelligent terminal, comparing the client password with the traffic permit for operating the appointed procedure or entering the appointed user interface, when the client password is the same with the traffic permit for operating the appointed procedure or entering the appointed user interface, unlocking the intelligent terminal and operating the appointed procedure or entering the appointed user interface corresponding to the traffic permit which is the same with the client password. Compared with the prior art, the user can operate the appointed procedure or enter the appointed user interface while unlocking intelligent terminal screen, so the time and process for searching the procedure or user interface can be saved and the misoperation by children can be avoided.

An embodiment of the invention discloses a multi-terminal data synchronization method based on cloud storage, a device and a system thereof. The multi-terminal data synchronization method comprises the steps of receiving synchronous updated information of terminal user data which are transmitted by a terminal in real time through a bound account number; updating standby data buffer which corresponds with the terminal in a total buffer area that corresponds with the bound account number according to the synchronous updated information, and obtaining an updated total buffer area; synchronizing the terminal user data in all terminals under a binding-changed account number according to the updated total buffer area; afterwards, if a restoring instruction is obtained in a preset time, restoring the updated total buffer area to the total buffer area before updating according to the restoring instruction, and otherwise, confirming validity of the updating, and buffering the standby data in the updated total buffer area as standby data. The multi-terminal data synchronization method, the device and the system provided by the technical solution have functions realizing real-time automatic synchronization for the user data of multiple terminals, preventing data updating caused by a maloperation, and greatly improving flexibility and safety in data synchronization.

The invention discloses a boosting based cost sensitive software defect prediction method, belonging to the technical field of software engineering application. According to the invention, re-sampling is carried out by means of Bootstrap, the erroneous deletion of valuable attributes can be prevented by using a cost-sensitive subclass selection manner of randomly deleting an attribute during attribute selection, and meanwhile, the selected attribute sub-class facilitates the reduction of prediction error costs, when the weight is updated, a cost-sensitive weight updating mechanism is adopted, large weight is endowed to a data set with high cost, so that the data can be guaranteed to be studied for many times to obtain a reasonable integrated prediction model, and the prediction model is applied to small sample data to accurately predict software defects, and therefore, the technical problems that the prediction effects are not satisfactory due to the shortage of training data under the small sample data and the unequal cost of false positives and false negatives in the prediction process are solved.

The invention discloses a median filtering image processing method and apparatus. The method includes the steps of inputting an NXN pixel matrix, calculating the absolute values of differences between the central pixel point of the pixel matrix and all other pixel points, sequentially determining whether the absolute values of the differences between the central pixel point of the pixel matrix and all other pixel points are greater than a first preset threshold, recording the number of pixel points, of which the absolute values of the differences with the central pixel point are greater than the first preset threshold, determining whether the number of the pixel points, of which the absolute values of the differences with the central pixel point are greater than the first preset threshold is greater than a second preset threshold, and if yes, conducting filtering processing for the central pixel point, otherwise conducting no filtering processing. Discrete impulse noise points in noised images can be removed through median filtering processing, thereby retaining high-frequency edges of the image, and facilitating processing of subsequent modules. A detection algorithm employing gradient determination effectively prevents deleting non-noise points by mistake.

The invention discloses a depth-based light field splicing method. The depth-based light field splicing method comprises: inputting a light field to be spliced and a sub-aperture image of the light field, and estimating a light field depth of the sub-aperture image of the light field to obtain a depth map of the light field; extracting feature points in the sub-aperture image of the light field, matching the feature points to obtain feature point pairs, and screening the feature point pairs to obtain matching feature point pairs; performing 4D meshing on the light field to be spliced, and predicting a global homography transformation matrix according to the matching feature point pairs; establishing a weight matrix according to the depth and position relationship between the feature pointsand center points of the meshes; and predicting the optimal homography transformation matrix of each mesh according to the global homography transformation matrix and the weight matrix, mapping the light field according to the optimal homography transformation matrix of each mesh in the light field, fusing the light field, and obtaining a light filed splicing result. The invention solves the problem of dislocation and ghosting caused by large parallax changes, and realizes a precise parallax-tolerant light field splicing method.

The invention discloses a precise search observation method for the form and the evolutionary process of cracks of a coal-mine roof. The precise search observation method comprises the following steps of: (1) using a geological drill to carry out roof drilling; (2) using a rock-stratum observation recorder to search a surface crack area; (3) using a double-end water plugging device to search deep cracks in the surface crack area; (4) analyzing data and determining the positions of the deep cracks; (5) installing a multi-point displacement meter on the positions of the deep cracks to observe crack evolution data; and (6) comprehensively analyzing data obtained by the double-end water plugging device, the rock-stratum observation recorder and the multi-point displacement meter, and then determining the distribution, the form and the evolutionary process of the cracks of the roof. The precise search observation method disclosed by the invention has the advantages that in the whole observation process, the observation cost is furthest saved, the positions of the cracks, the form of the cracks on the surface, the degree of the deep cracks and the complete data of the evolutionary process of the cracks are obtained, and the result is accurate.

The present invention provides a method of preventing piracy, including an application program for providing data content and playing data content, at least part of the application program being read by a player; storing data content by unrecognized data format of the player; providing data chaining in the application program. The invention is used for preventing duplication, data delete in the adding hardware storage device.

The invention provides a disparity map-based road detection method and device, and relates to the technical field of image processing. The method comprises the following steps of: determining a sparsedisparity map and a V disparity map of a to-be-detected image; obtaining the number of effective pixel points in a column of the V disparity map and a row range corresponding to the effective pixel points according to a preset pixel threshold value, and determining a row to which a road surface in the V disparity map belongs; and determining a road surface parallax point in the sparse disparity map according to the row to which the road surface in the V disparity map belongs, wherein a parallax value of the road surface parallax point is a parallax value corresponding to the column. By applying the method, the correctness and efficiency for determining road surface parallax points in disparity map images can be improved; and the method is suitable for scenes with undulating practical roadsurfaces.

When the neighbor device tests and finds that the conversation with restart device is broken, the reconnect timer (RT) is started. When the neighbor device tests and finds that it is under the Operational state and RT is not overtime, RT is shut and a recovery timer is started. The neighbor device and the restarting device begin to recover the transferring items, used for keeping the flux. This invention prevents the flux from interrupting in the GR process. It also avoids the concurrence of several Recovery timers. All this raises the GR effectivity.

Embodiments of the invention provide a file processing method and device. The method comprises the following steps of: in response to a deletion operation, for a file, of a user, determining a value score of the file, wherein the value score of the file is determined according to operation parameters of the file; and processing the file according to the value score, wherein the processing comprises deleting the file and carrying out backup on the file, or displaying a prompt message which is used for stopping the deletion operation. According to the method and device, the condition that usersmistakenly delete important files can be avoided, or under mistaken deletion condition of users, files can be recovered according to backup, so that great convenience is brought to the users, and thetime required by the users for reediting or searching the files is saved.

The invention provides a method for quickly locating an oblique text in a natural scene based on MSER, wherein the method belongs to the technical field of text locating identification. The method comprises the steps of performing gray processing on an original image; performing quick extraction on a suspected text area on a gray image by means of an MSER algorithm, and processing the suspected text area through elliptical processing; according to a long-to-short axis ratio of a fitting ellipse and a characteristic that the fitting ellipse exists at the central part of the text area, performing coarse filtering of a non-text area; according to the ratio between the irregular actual extraction area and the fitting elliptical area of the MSER, performing further fine filtering, and determining whether the fitting ellipse is in an area error; performing text fusion by means of a hierarchical clustering concept, and combining disperse text areas for obtaining a word area through characterspace coarse classifying, character chain member filtering, similarity text chain combining, RGB average value single-character and character chain screening; and obtaining the text area. The method according to the invention has advantages of reducing text location time, realizing no location precision reduction, and realizing high-efficiency oblique scene text locating.